British journalist Sami Hamdi was reportedly detained on Sunday morning by federal immigration authorities at San Francisco international airport, and the Council on American-Islamic Relations (Cair) says that action is apparent retaliation for the Muslim political commentator’s criticism of Israel while touring the US.

A statement from Cair said it was “a blatant affront to free speech” to detain Hamdi for criticizing Israel’s ongoing military campaign in Gaza while he engaged on a speaking tour in the US. A Trump administration official added in a separate statement that Hamdi is facing deportation.